Generally, both the purchaser and seller must file Form 8594 and attach it to their income tax returns (Forms 1040, 1041,. Form 8594 is a tax document required in certain business sales where the buyer acquires assets rather than stock or equity.Both the buyer and the seller in an asset acquisition are required to file the Asset Acquisition Statement, Form 8594, with the IRS. Both the buyer and seller have to file Form 8594 with their own individual income tax return. – Both the purchaser and seller are required to file Form 8594. – The Form 8594 must be attached to each filer's timely filed Federal income tax return.